A support device for high-altitude construction

Abstract

The present invention discloses a support device for high-altitude construction, comprising two pedal structures for supporting feet, and a connecting structure connecting the two pedal structures, wherein the connecting structure comprises a supporting part, two connecting parts respectively connecting the pedal structures and the supporting part, the connecting structure spans a crossbeam and the supporting part is supported on the crossbeam, the two connecting parts are respectively located on the left and right sides of the crossbeam, and the pedal structure is fixed to one end of the connecting part extending downward along the crossbeam. The beneficial effect of the present invention is that a support device for both feet is provided for human sitting construction in a single crossbeam high-altitude construction operation, so as to avoid dizziness caused by long-term suspension of human feet, which may cause danger and make high-altitude construction operation safer.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, in particular to a supporting device for high-altitude construction. Background Art

[0002] In some high-altitude construction situations, construction workers need to paint, weld or tighten on a single beam. There is no effective and safe working surface, so construction workers can only sit on the beam to carry out construction with their feet suspended in the air. There is no effective support, which makes the safety guarantee of high-altitude construction low. After a long construction period, the human body is prone to dizziness, resulting in a temporary imbalance of the center of gravity and shaking of the body. When the dizziness is severe, it is easy to cause the body to fall from the beam. Even if there is a safety belt to provide safety protection, the stimulation caused by weightlessness without protection can easily cause mental damage to the human body. In addition, the feet are suspended in the air for a long time. When the construction workers finish the construction and stand up to step on the solid body, there will be an initial shock for a short time. Discomfort, there will be errors in the perception of entities, and the construction workers are still at a height at this time. A momentary error can easily lead to misjudgment and danger; finally, construction workers sitting at height to carry out construction often still need to look up to operate. When an accident occurs during the operation, parts fall, or something falls from a height, even if a safety helmet is worn to protect the human body, when seeing falling objects or realizing that there are falling objects, the human body will subconsciously react to avoid danger. At this time, the human body will place the center of gravity on the feet and lift it off the hips to avoid danger. Therefore, even if the feet are supported, the human body will cause accidents due to subconscious reactions. A momentary deviation of the center of gravity may cause the human body to become unstable and fall from the support device. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a supporting device for high-altitude construction, which can effectively improve the safety during normal work or emergency avoidance during high-altitude construction.

[0004] The present invention is achieved through the following technical solutions:

[0005] A support device for high-altitude construction includes two footrest structures for supporting feet and a connecting structure connecting the two footrest structures, the connecting structure includes a supporting portion and two connecting portions respectively connecting the footrest structures and the supporting portion, the connecting structure spans a crossbeam and the supporting portion is supported on the crossbeam, the two connecting portions are respectively located on the left and right sides of the crossbeam, and the footrest structure is fixed to one end of the connecting portion extending downward along the crossbeam.

[0006] The principle of the present invention is that, in view of the construction state of a single horizontal beam in the air, the construction workers do not have an effective and safe working surface and can only sit on the horizontal beam to carry out construction, with their feet suspended in the air and without effective support, which makes the safety guarantee of high-altitude construction low. After a long construction period, the human body is prone to dizziness, and a short period of dizziness can easily cause an imbalance of the human body's center of gravity. In severe cases, it may cause the human body to fall from the horizontal beam. Even with the protection of a safety belt, the stimulation without defense will have a great impact on the psychology and spirit of the construction workers. Therefore, a supporting device is invented, a footrest structure for both feet is designed to rest the feet, and a connecting structure is provided to connect the two footrest structures, and the connecting structure can be hung on the horizontal beam for fixing, so that the construction workers can sit on the horizontal beam and rest their feet. When performing construction work on a single beam, it is only necessary to hang the supporting device on the beam, sit on the beam, and place both feet on the footrest structure for support. Such a structure avoids the state of construction workers' feet hanging in the air for a long time, and avoids dizziness of the human body, thereby making high-altitude work safer, and the feet are always in a supporting state, without losing the feeling of stepping on a solid entity. After completing the construction, the human body will not feel discomfort at the moment of contact with the solid entity due to the long-term suspension of the feet, resulting in misjudgment, thus avoiding accidents caused by misjudgment. At the same time, construction workers need to move their positions during high-altitude construction, and the supporting device can also provide construction workers with an effective mobile support device, making the movement of construction workers more convenient.

[0007] As a further improvement of the present invention, the connecting structure includes two connecting members arranged at intervals along the length direction of the beam, the connecting member includes a connecting portion in the form of a long rod-shaped structure which is vertically arranged and located on the left and right sides of the beam, and a supporting portion in the form of a long rod-shaped structure which connects the two connecting portions and is horizontally arranged, and the two connecting members are respectively connected to the front and rear ends of the two footrest structures near the beam.

[0008] Two connecting parts are set to respectively connect the two ends of the footrest structure. On the one hand, by only connecting the two ends of the footrest structure, it is obvious that a lot of consumables required for manufacturing the connecting structure can be saved. On the other hand, the supporting device is suspended on the beam through the connecting structure. Obviously, it is safer to set two connecting parts for suspension. The supporting device has a certain weight and is used at high altitude. Once it is not firmly fixed and falls, it may cause immeasurable losses and safety cannot be guaranteed. The connecting parts are set at the end so that the distance between the two connecting parts is at the farthest state. The farther the distance between the two connecting parts, the more stable the fixation of the supporting device is.

[0009] As a further improvement of the present invention, the pedal structure is provided with a foot fixing mechanism, the fixing mechanism includes a fixed shaft, a foot fixing structure rotatably connected to the fixed shaft, a locking structure and an unlocking structure, the foot fixing structure and the pedal structure cooperate to clamp the foot, the locking structure is used to prevent the foot fixing structure from flipping toward the foot, and the unlocking structure is used to release the locking effect of the locking structure, so that the foot fixing structure flips toward the foot and cooperates with the pedal structure to clamp the foot.

[0010] Even though the feet are no longer suspended in the air due to the support device during the construction process, the dizziness caused by the feet being suspended in the air for a long time, which causes the center of gravity to be unbalanced and cause danger, the working conditions during the construction process are uncontrollable. During the construction process, construction objects may fall or objects may fall from a higher place. Even if the construction workers wear safety helmets, the human body will still subconsciously avoid danger when it realizes that there are falling objects. The center of gravity of the human body will move forward to the feet in an instant, and the buttocks will be lifted off the beam. Because the person is in a sitting position, even if the center of gravity moves forward for an instant, the legs cannot bear the weight of the human body, and the center of gravity will fall back to the buttocks in a short time. The human body will lean forward and backward in a short time. This can easily cause an unstable center of gravity. When leaning back, the feet are easily separated from the supporting device, causing the body to sway. In severe cases, there may be a risk of the beam falling off. Therefore, a fixing mechanism for the feet is provided on the pedal structure. When the human body is working normally, the foot fixing structure is locked in a position away from the feet under the action of the locking structure. At this time, the feet are in a free state, allowing construction workers to move their feet freely when sitting for a long time. When the human body takes emergency precautions, the unlocking structure is triggered to contact the locking structure of the locking structure, and the foot fixing structure flips downward to buckle the feet and fix the feet on the pedal structure to prevent the feet from being separated from the pedal structure and causing danger.

[0011] As a further improvement of the present invention, a sleeve is provided on the foot fixing structure, and the sleeve is rotatably sleeved on the fixed shaft. The locking structure includes a tongue protruding outward along the surface of the fixed shaft, and a first groove recessed inward along the inner surface of the sleeve and engaged with the tongue. When working normally, the tongue and the first groove are engaged with each other to prevent the foot fixing structure from flipping toward the foot, so that the foot fixing structure is fixed in a position away from the foot.

[0012] A clamping tongue and a clamping slot that engage with each other are arranged on the fixed shaft and the shaft sleeve. The foot fixing structure is fixed at a position away from the feet through the cooperation of the clamping tongue and the clamping slot. This arrangement allows the feet to move freely during normal work of the human body.

[0013] As a further improvement of the present invention, the unlocking structure includes a pedal, the pedal structure is provided with a rotating shaft extending in a direction perpendicular to the fixed axis to above the fixed axis, the rear end of the pedal is fixedly connected to the rotating shaft and the front end thereof is suspended upward away from the pedal structure, and when the front end of the pedal moves downward, it can drive the rotating shaft to rotate around its own axis direction; the rotating shaft extends from the pedal toward the fixed axis, and a gear is fixedly sleeved at one end close to the fixed axis, and the fixed axis is provided with a tooth groove meshing with the gear along the length direction, and when the foot steps on the pedal forward, the gear can drive the fixed axis (41) to move along the axis direction so that the latching tongue disengages from the latching action of the first latching groove to release the locking action of the locking structure.

[0014] An unlocking structure is set. When a person takes emergency precautions, the center of gravity moves forward to the feet. The feet press the pedal part hard, so that the pedal part drives the pushing part to push the fixed shaft to move along its axial direction, thereby causing the latch tongue to disengage from the fixing effect of the first slot to release the lock. The foot fixing structure rotates downward to buckle the feet, so that the feet are fixed on the pedal structure. Through the fixing effect of the fixing mechanism, the risk of unbalanced feet and detachment, which may cause the center of gravity of the human body to be unstable and cause the risk of falling, is avoided.

[0015] As a further improvement of the present invention, the fixed shaft is inserted into the pedal structure, the surface of the fixed shaft protrudes outward along the length direction to form a step portion, and a section between the step portion and the pedal structure is sleeved with a return spring.

[0016] The fixed shaft is inserted into the pedal structure, and the purpose of setting the return spring is to enable the fixed shaft to move along its own axial direction under the action of the unlocking structure to release the locked state of the locking structure, and under the action of the return spring, when the unlocking structure is not working, the fixed shaft can return to its original state under the action of the return spring.

[0017] As a further improvement of the present invention, the sleeve is also provided with a second slot that engages with the latch tongue. When the foot fixing structure fixes the foot, the latch tongue and the second slot engage with each other to prevent the foot fixing structure from flipping toward the foot.

[0018] The second slot is provided on the shaft sleeve. The purpose is that when the center of gravity of the human body moves forward and the foot fixing structure buckles the feet, the feet cannot support the weight of the body in the sitting state, and the human body will lean back again. At this time, because the center of gravity falls back, the feet will be lifted off the pedal structure. In this case, the force of the feet is relatively large, and the foot fixing structure itself cannot completely buckle the feet. Therefore, the second slot is provided on the peripheral sleeve. When the feet are lifted off, that is, the feet leave the pedal part of the unlocking structure, the unlocking structure is reset, so that the fixed shaft returns to its original position, and when the foot fixing structure rotates and falls, the second slot is just rotated to a position that can cooperate with the tongue, and the fixed shaft return tongue is inserted into the second slot to fix the foot fixing structure. In this way, even if the feet are lifted off, the foot fixing structure will not be pushed open, which can effectively ensure the fixing of the feet. The unlocking structure can be stepped on again to unlock again, and the construction personnel only need to bend the foot fixing structure back to fix it to the initial position again.

[0019] As a further improvement of the present invention, a tensioning structure is provided between the two connecting parts, and both ends of the tensioning structure are respectively clamped and fixed to the two connecting parts and are located below the crossbeam, so as to pull the two connecting parts together towards the crossbeam.

[0020] The purpose of setting up the tensioning structure is to clamp the two connecting parts tightly on both sides of the beam through the pulling effect of the tensioning structure, which can effectively prevent the supporting device from shaking, thereby making the construction process safer.

[0021] As a further improvement of the present invention, at least one reinforcing rib arranged parallel to the crossbeam is connected between the two connecting members.

[0022] The purpose of providing the reinforcing ribs is to make the structure of the supporting device more stable and firm.

[0023] Beneficial effects of the present invention:

[0024] (1) A foot support device is provided to support the feet during high-altitude construction so that the feet will not be suspended in the air for a long time, thus avoiding dizziness caused by long-term suspension, which will cause an unstable center of gravity and make high-altitude work safer. At the same time, the supporting function of the support device can prevent the human body from feeling uncomfortable when stepping on a solid object after the construction is completed, which may cause misjudgment of the feet and lead to an imbalance of the center of gravity, causing danger.

[0025] (2) A foot fixing mechanism is provided to instantly fix the feet when the human body subconsciously changes its center of gravity to avoid danger, so as to prevent the feet from being lifted off the supporting device due to imbalance of the center of gravity, causing the human body to fall and create danger, thus making the construction process safer.

[0026] (3) The fixing mechanism is initially fixed at a position away from the feet, so that the feet can move freely during normal work and are not in a fixed state at the beginning. In this way, the human body can relax and change posture by moving the feet during normal work, thereby avoiding numbness of the legs and further increasing the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the footrest structure, the connecting member and the reinforcing ribs in the present invention;

[0028] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0029] Figure 3 It is a left-side structural schematic diagram of the present invention;

[0030] Figure 4 Schematic diagram of the specific structure of the shaft sleeve. DETAILED DESCRIPTION

[0031] The present invention is described in detail below through the accompanying drawings and embodiments.

[0032] First of all, it should be noted that in the present invention, the front and rear directions are defined by the extension direction of the length of the beam, the left and right directions are defined by the direction in which the connecting structure crosses the beam, the up and down directions are defined by the vertical direction, and the end of the pedal closer to the construction workers is designated as the rear end, and the other end is designated as the front end.

[0033] See also Figure 1 , Figure 2The present invention provides a support device for high-altitude construction, comprising two footrest structures 1 and a connection structure 2 connecting the two footrest structures 1, wherein the two footrest structures 1 are used to support two feet, and the connection structure 2 spans a crossbeam 22 to fix the support device, and the connection structure 2 comprises two connecting members 21 spaced apart along the length direction of the crossbeam 22, and the connecting member 21 comprises a support portion 211 and two connecting portions 212, wherein the support portion 211 is horizontally arranged and supported on the crossbeam 22, and the two connecting portions 212 are vertically arranged and respectively located on the left and right sides of the crossbeam 22, and the support portion 211 connects the upper ends of the two connecting portions 212, and the support portion 211 and the connecting portion 212 are both long rod-shaped structures, and the two together form a "U"-shaped frame, which is mounted on the crossbeam 22 to fix the support device. Preferably, the present invention In the embodiment, angle steel is used to make the connection part and the support part. The advantages are that on the one hand, angle steel is easy to obtain and process, and on the other hand, the structure of angle steel is relatively stable, which makes the structure of the entire support device more solid and stable. The two ends of the two connecting members 21 are respectively connected to the front end and the rear end of the footrest structure 1 close to the crossbeam, and the footrest structure 1 is fixed to one end of the connection part 212 extending downward along the crossbeam. Reinforcing ribs 7 are also provided at both ends of the two connecting members 21. The support device is mounted on the crossbeam 22. Although the construction workers sit on the crossbeam to work, the force of their feet supporting the footrest structure will not be too large. However, when moving the support device or taking emergency precautions, the feet will step on the support device more forcefully. Therefore, reinforcing ribs are provided between the two connecting members to make the connection structure more stable and more solid.

[0034] Combination Figure 2 , Figure 3 The pedal structure 1 is provided with a foot fixing mechanism 4, and the fixing mechanism 4 includes a fixing shaft 41, a foot fixing structure 42, a locking structure 43 and an unlocking structure 44. The bottom surface of the pedal structure 1 is formed with two first mounting seats 11 protruding upward, and the two ends of the fixing shaft 41 are respectively inserted into the first mounting seats 11, and the surface of the fixing shaft 41 is protruding outward along the length direction to form a step portion 412. A section of the fixing shaft 41 located between the first mounting seat 11 and the step portion 412 is sleeved with a return spring 5. The foot fixing structure 42 is provided with a shaft sleeve 421, and the shaft sleeve 421 is sleeved on the fixing shaft 41, so that the foot fixing structure 42 can be flipped relative to the fixing shaft 41, and the foot fixing structure 42 is provided with a torsion spring, so that the foot fixing structure 42 can automatically flip toward the foot after losing the locking effect of the locking structure 43 and cooperate with the pedal structure 1 to clamp the foot, combined with Figure 4The inner surface of the shaft sleeve 421 protrudes outward to form a step, and the step is recessed inward along the surface to form a first slot 4211 and a second slot 4212. The upper surface of the fixed shaft 41 protrudes outward to form a tongue 411 that is engaged with the first slot 4211 and the second slot 4212. The unlocking structure 44 includes a pedal 441. Two second mounting seats 12 extend upward along the vertical direction from the top surface of the pedal structure 1. The two second mounting seats 12 are spaced apart in a direction perpendicular to the fixed shaft 41. A rotating shaft 443 is inserted into the two mounting seats 12. The rear end of the pedal 441 is fixed on the rotating shaft 443, and the front end is suspended upward away from the pedal structure 1, so that the entire pedal 441 is tilted. A torsion spring is arranged between the foot pedal 441 and the foot pedal structure 1, so that the foot pedal can maintain an upward tilted state when the fixing mechanism is not working. When the foot pedal is stepped on downward, the foot pedal drives the rotating shaft to rotate around its own axis direction. The rotating shaft 443 extends from the foot pedal 441 toward the fixed shaft 41, and a gear 442 is fixedly sleeved at one end close to the fixed shaft 41. The fixed shaft 41 is provided with a tooth groove 413 meshing with the gear 442 along the length direction. When the rotating shaft 443 rotates, it drives the gear 442 to rotate, and the gear 442 meshes with the tooth groove 413. When rotating, it can drive the fixed shaft 41 to move in the axial direction, so that the tongue 411 is disengaged from the clamping action of the first clamping groove 4211, thereby releasing the locking action of the locking structure 43.

[0035] The working principle of the foot fixing mechanism is as follows: when the construction personnel are working normally, the foot fixing structure flips to a position away from the feet and remains fixed in the vertical direction. At this time, the first slot 4211 and the latch tongue 411 are engaged with each other to lock the foot fixing structure 42 to prevent it from flipping to the position where the feet are located. In this way, it can be ensured that the construction personnel's feet can move freely on the footrest structure when they are in normal construction status to avoid discomfort to the feet caused by long-term restraint. When encountering falling objects from high altitude or falling construction objects, the center of gravity of the human body moves forward and the foot pedal is stepped on. The foot pedal drives the rotating shaft to rotate, thereby driving the gear fixed on the rotating shaft to rotate. Under the meshing action of the tooth groove, the rotation of the gear drives the fixed shaft to move in the axial direction, so that the latch tongue and the first slot are out of the engaged state to release the locking effect of the locking structure. At this time, the foot fixing structure quickly flips downward under the elastic force of the torsion spring to cooperate with the footrest structure to buckle. When the human body leans back, the foot will be lifted up and reset by the spring, and the locking tongue on the fixing shaft will be inserted into the second slot of the shaft sleeve, and the foot fixing structure will be locked again by the clamping action of the clamping tongue and the second slot. When the human body leans back, the force of lifting the feet is relatively large, and the elastic force of the torsion spring alone is not enough to fix the feet, and there is a risk of the foot fixing structure being pushed open. Therefore, the foot fixing structure is locked again by the clamping action of the clamping tongue and the slot, so that the foot fixing mechanism is more reliable, thereby making the entire foot support device safer. When the foot fixing structure needs to be loosened, it is only necessary to step on the foot pedal to lift and reset the foot fixing structure, and then release the foot pedal to make the locking structure in a locked state to restore the initial position of the fixing mechanism, which is easy to operate.

[0036] See also Figure 2 A tensioning structure 6 is also provided between the two connecting parts of the same connecting piece. In this embodiment, the clamping structure adopts a steel bar structure, and the connecting piece in this embodiment is made of angle steel. The two ends of the steel bar are bent into a hook shape and inserted into the two sides of the angle steel respectively for tightening the two connecting parts, so that the connecting piece can firmly clamp the beam to avoid shaking during the construction of the entire supporting device.

[0037] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned implementation cases, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned implementation cases, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. A support device for high-altitude construction, characterized in that: The invention comprises two pedal structures (1) for supporting feet, and a connecting structure (2) connecting the two pedal structures (1); the connecting structure (2) comprises a supporting portion (211), and two connecting portions (212) respectively connecting the pedal structures (1) and the supporting portions (211); the connecting structure (2) spans a crossbeam (22), and the supporting portion (211) is supported on the crossbeam (22); the two connecting portions (212) are respectively located on the left and right sides of the crossbeam (22); the pedal structure (1) is fixed to the connecting portion (212) and extends downward along the crossbeam (22). The connecting structure (2) comprises two connecting members (21) arranged at intervals along the length direction of the cross beam (22), the connecting member (21) comprising a connecting portion (212) in the form of a long rod and arranged vertically and located on the left and right sides of the cross beam (22), and a supporting portion (211) in the form of a long rod and connected to the two connecting portions (212) and arranged horizontally, the two connecting members (21) respectively connecting the front and rear ends of the two pedal structures (1) close to the cross beam (22), the pedal structure (1) being provided with a foot fixing mechanism (4), the fixing mechanism (4) The fixing mechanism (4) comprises a fixing shaft (41), a foot fixing structure (42) rotatably connected to the fixing shaft (41), a locking structure (43) and an unlocking structure (44); the foot fixing structure (42) cooperates with the pedal structure (1) to clamp the foot; the locking structure (43) is used to prevent the foot fixing structure (42) from turning toward the foot; the unlocking structure (44) is used to release the locking effect of the locking structure (43), so that the foot fixing structure (42) turns toward the foot and cooperates with the pedal structure (1) to clamp the foot; the foot fixing structure (42) is used to prevent the foot fixing structure (42) from turning toward the foot; and the unlocking structure (44) is used to release the locking effect of the locking structure (43), so that the foot fixing structure (42) turns toward the foot and cooperates with the pedal structure (1) to clamp the foot. A shaft sleeve (421) is provided on the fixed structure (42), and the shaft sleeve (421) is rotatably sleeved on the fixed shaft (41). The locking structure (43) comprises a latch tongue (411) formed by protruding outwards along the surface of the fixed shaft (41), and a first latch groove (4211) formed by being recessed inwards along the inner surface of the shaft sleeve (421) and engaging with the latch tongue (411). When working normally, the latch tongue (411) and the first latch groove (4211) are engaged with each other to prevent the foot fixing structure (42) from turning toward the foot, so that the foot fixing structure (42) is fixed at a position away from the foot.

2. A support device for high-altitude construction according to claim 1, characterized in that: The unlocking structure (44) comprises a pedal (441), the pedal structure (1) being provided with a rotating shaft (443) extending in a direction perpendicular to the fixed shaft (41) to above the fixed shaft (41), the rear end of the pedal (441) being fixedly connected to the rotating shaft (443) and the front end of the pedal (441) being suspended upward away from the pedal structure (1), and the front end of the pedal (441) being able to drive the rotating shaft to rotate about its own axis when the front end of the pedal (441) moves downward; the rotating shaft is moved from the pedal (441) toward the fixed shaft (41), and the rotating shaft is moved from the pedal (441) to the fixed shaft (41). The fixed shaft (41) extends, and a gear (442) is fixedly sleeved at one end close to the fixed shaft (41). The fixed shaft (41) is provided with a tooth groove (413) meshing with the gear (442) along the length direction. When the foot steps forward on the pedal (441), the gear (442) can drive the fixed shaft (41) to move along the axial direction so that the latching tongue (411) is disengaged from the latching action of the first latching groove (4211) to release the locking action of the locking structure (43).

3. A support device for high-altitude construction according to claim 2, characterized in that: The fixed shaft (41) is inserted into the pedal structure (1), the surface of the fixed shaft (41) protrudes outwards along the length direction to form a step portion (412), and a section between the step portion (412) and the pedal structure (1) is sleeved with a return spring (5).

4. A support device for high-altitude construction according to claim 1, characterized in that: The shaft sleeve (421) is also provided with a second slot (4212) that is engaged with the latch tongue (411); when the foot fixing structure (42) fixes the foot, the latch tongue (411) and the second slot (4212) are engaged with each other to prevent the foot fixing structure (42) from turning toward the foot.

5. The supporting device for high-altitude construction according to claim 1, characterized in that: A tensioning structure (6) is provided between the two connecting portions (212), and two ends of the tensioning structure (6) are respectively clamped and fixed to the two connecting portions (212) and are located below the crossbeam (22) for pulling the two connecting portions (212) together in a direction close to the crossbeam (22).

6. A support device for high-altitude construction according to claim 1, characterized in that: At least one reinforcing rib (7) arranged parallel to the crossbeam is connected between the two connecting members (21).

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